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Special and General Relativity Forum

Join in expert discussion on special and general relativity discussion. Relativity is the dependence of various physical phenomena on relative motion of the observer and the observed objects.

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Graduate How does energy differ from mass?

Jul 21, 2003 · Replies 48 · Aug 22, 2003

2

Replies: 48

Views: 9K

Graduate What Are the True Dimensions of Time?

Jul 27, 2003 · Replies 21 · Aug 20, 2003

Replies: 21

Views: 4K

Graduate Absolute Space and Time in Einstein's General Theory of Relativity

Aug 18, 2003 · Replies 8 · Aug 20, 2003

Replies: 8

Views: 8K

Graduate Does Travelling at Light Speed Turn the Time Cone into a Cube?

Aug 19, 2003 · Replies 1 · Aug 19, 2003

Replies: 1

Views: 3K

Graduate Gravity and Time: A Revolutionary Thought

Aug 17, 2003 · Replies 5 · Aug 19, 2003

Replies: 5

Views: 3K

Undergrad Questioning the Inclusion of Time in the E=mc2 Equation

Aug 18, 2003 · Replies 4 · Aug 19, 2003

Replies: 4

Views: 3K

Graduate Is Peter Lynds a Controversial Figure in the Discussion of Space and Time?

Aug 13, 2003 · Replies 1 · Aug 15, 2003

Replies: 1

Views: 4K

Graduate Speed of Tachyons: Accelerating Toward Shooter

Aug 7, 2003 · Replies 15 · Aug 14, 2003

Replies: 15

Views: 5K

Graduate Is symmetry the key to understanding our relativistic universe?

Aug 12, 2003 · Replies 4 · Aug 14, 2003

Replies: 4

Views: 3K

Undergrad How Is Age Calculated in the Twin Paradox?

Aug 12, 2003 · Replies 3 · Aug 13, 2003

Replies: 3

Views: 3K

Graduate The Implications of Homogeneity and Isotropy

Aug 6, 2003 · Replies 5 · Aug 6, 2003

Replies: 5

Views: 4K

Graduate Is Relativity the Key to Understanding Doppler Shift on a Moving Train?

Jul 31, 2003 · Replies 19 · Aug 5, 2003

Replies: 19

Views: 5K

Graduate Is the Twin Paradox Really Solved by Considering Acceleration?

Aug 4, 2003 · Replies 7 · Aug 5, 2003

Replies: 7

Views: 3K

Graduate Can the Effects of Relativity be Detected in a Simple Wire Experiment?

Aug 4, 2003 · Replies 10 · Aug 4, 2003

Replies: 10

Views: 3K

Undergrad Time Dilation: Seeing the Effects from Different Perspectives

Aug 2, 2003 · Replies 17 · Aug 4, 2003

Replies: 17

Views: 5K

Graduate Are the people encountered in time travel the same as in the present?

Jul 14, 2003 · Replies 4 · Aug 1, 2003

Replies: 4

Views: 3K

Graduate Is Time Truly Relative or Does It Happen Simultaneously?

Jul 28, 2003 · Replies 14 · Jul 30, 2003

Replies: 14

Views: 4K

Undergrad What's the Time? Einstein & Moving Clocks Explained

Jul 26, 2003 · Replies 2 · Jul 28, 2003

Replies: 2

Views: 3K

Graduate Did Einstein Believe in the Aether? Deciphering the Controversial Claims

Jul 18, 2003 · Replies 40 · Jul 24, 2003

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Replies: 40

Views: 21K

Graduate Could M-Dimensional Time Change Our Understanding of Spacetime?

Jul 22, 2003 · Replies 4 · Jul 22, 2003

Replies: 4

Views: 3K

Graduate What is the Paradox of Gravitation and its Resolution?

May 24, 2003 · Replies 59 · Jul 19, 2003

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Replies: 59

Views: 8K

Graduate Understanding Imaginary Time: A Simplified Explanation

Jun 9, 2003 · Replies 22 · Jul 19, 2003

Replies: 22

Views: 14K

Graduate Debunking the Myth of Logical Errors in Transverse Doppler Effect Experiments

Jul 5, 2003 · Replies 21 · Jul 11, 2003

Replies: 21

Views: 6K

Graduate What is the Significance of the Imaginary Part in Relativistic Distance?

Jul 1, 2003 · Replies 21 · Jul 8, 2003

Replies: 21

Views: 6K

Graduate Dr. Paul Marmet: The Universe is Flat & No Time Dilation

Jul 7, 2003 · Replies 1 · Jul 7, 2003

Replies: 1

Views: 4K

High School Has time dilation ever been proven experimentally?

Jul 1, 2003 · Replies 11 · Jul 4, 2003

Replies: 11

Views: 12K

Graduate Unraveling the Mysteries of Time: A Scientist's Perspective

Jul 4, 2003 · Replies 1 · Jul 4, 2003

Replies: 1

Views: 3K

Undergrad Can Anyone Ever Surpass a 100m Sprint Time of 0.000000334 Seconds?

Jun 30, 2003 · Replies 16 · Jul 2, 2003

Replies: 16

Views: 18K

High School What Is the Twin Paradox?

Jun 30, 2003 · Replies 16 · Jul 2, 2003

Replies: 16

Views: 7K

Undergrad How do the effects of relativity cancel out in the twin paradox?

Jun 30, 2003 · Replies 6 · Jun 30, 2003

Replies: 6

Views: 3K

Graduate String irrelevant to quantizing General Relativity (quantum spacetime geometry)

Jun 27, 2003 · Replies 4 · Jun 29, 2003

Replies: 4

Views: 4K

Undergrad Question about Cg and the Speed of Gravity in Newton's Theory

Jun 28, 2003 · Replies 1 · Jun 28, 2003

Replies: 1

Views: 3K

Graduate Explaining Sagnac Experiment: Einstein & Constant Velocity of Light

Jun 24, 2003 · Replies 1 · Jun 24, 2003

Replies: 1

Views: 4K

Graduate What are the fundamental concepts of relativity explained by Einstein?

Jun 15, 2003 · Replies 9 · Jun 21, 2003

Replies: 9

Views: 5K

Graduate How Does Time Dilation Affect Perception of Events?

Jun 9, 2003 · Replies 18 · Jun 20, 2003

Replies: 18

Views: 5K

Graduate What is Doubly Special Relativity?

Jun 11, 2003 · Replies 2 · Jun 18, 2003

Replies: 2

Views: 4K

Undergrad Does Relativistic Mass Increase with Speed?

Jun 3, 2003 · Replies 32 · Jun 14, 2003

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Replies: 32

Views: 8K

Graduate Is Time Vacuum Energy According to Einstein's Biggest Blunder?

Apr 29, 2003 · Replies 15 · Jun 10, 2003

Replies: 15

Views: 4K

Undergrad Are phottons effected by gravity?

Jun 9, 2003 · Replies 5 · Jun 10, 2003

Replies: 5

Views: 6K

Graduate Book which can describe SR & GR straight from its postulates

Jun 6, 2003 · Replies 3 · Jun 7, 2003

Replies: 3

Views: 3K

Graduate Understanding of the theory of relativity

May 28, 2003 · Replies 11 · Jun 6, 2003

Replies: 11

Views: 5K

Graduate Making a wormhole just got easier

Jun 3, 2003 · Replies 10 · Jun 5, 2003

Replies: 10

Views: 3K

Graduate Is Time Travel Possible According to Physics?

May 31, 2003 · Replies 3 · Jun 1, 2003

Replies: 3

Views: 3K

Graduate How does gravity operate at the quantum level?

May 28, 2003 · Replies 14 · May 31, 2003

Replies: 14

Views: 4K

Graduate How Can Understanding Time and Relativity Change Our Perception of Reality?

May 25, 2003 · Replies 29 · May 29, 2003

Replies: 29

Views: 6K

Graduate Is the Curvature of Spacetime the Cause of Singularities in Black Holes?

Mar 17, 2003 · Replies 22 · May 28, 2003

Replies: 22

Views: 6K

Graduate Complete predictability contradicts relativity I think

Apr 28, 2003 · Replies 18 · May 28, 2003

Replies: 18

Views: 4K

Graduate Einstein's Religion: Mistakes in Physics & Time Order

May 23, 2003 · Replies 17 · May 28, 2003

Replies: 17

Views: 5K

Graduate Can Magnitism Stretch Time and Allow for Faster-Than-Light Travel?

May 23, 2003 · Replies 4 · May 24, 2003

Replies: 4

Views: 4K

Undergrad Understanding Time Dilation: Help for Middle Schoolers

May 23, 2003 · Replies 7 · May 24, 2003

Replies: 7

Views: 3K

Graduate Relativity of unit of measurement

May 16, 2003 · Replies 20 · May 22, 2003

Replies: 20

Views: 5K

Graduate Does SR seem like a total mystery to you?

Mar 7, 2003 · Replies 17 · May 22, 2003

Replies: 17

Views: 16K

Graduate Why Do We Need Covariant and Contravariant Concepts in Relativity Theory?

May 8, 2003 · Replies 15 · May 20, 2003

Replies: 15

Views: 6K

Graduate Calculating Sun's G-Force: Anomaly Effects Explained

May 17, 2003 · Replies 7 · May 18, 2003

Replies: 7

Views: 17K

Graduate What is the true meaning of Energy in Special Relativity?

May 13, 2003 · Replies 10 · May 17, 2003

Replies: 10

Views: 4K

Graduate What Happens to the Universe's Energy When Time Travel Leaves an Object Behind?

Apr 23, 2003 · Replies 24 · May 6, 2003

Replies: 24

Views: 5K

Graduate Is Time the Fourth Dimension?

Apr 25, 2003 · Replies 10 · May 6, 2003

Replies: 10

Views: 5K

Graduate Yes, I can see the ‘Straight’ line, but is it really straight?

May 1, 2003 · Replies 17 · May 6, 2003

Replies: 17

Views: 4K

Graduate Warp Drive: Is it Possible to Travel Faster Than the Speed of Light?

Apr 23, 2003 · Replies 10 · May 4, 2003

Replies: 10

Views: 6K

Graduate I had bazzar thought on relativity

Apr 29, 2003 · Replies 12 · May 2, 2003

Replies: 12

Views: 3K

Graduate What Is the Difference Between Invariant Mass and Proper Mass?

Apr 29, 2003 · Replies 11 · Apr 30, 2003

Replies: 11

Views: 14K

Graduate Einstein's General and Special Theory of Relativity

Apr 30, 2003 · Replies 2 · Apr 30, 2003

Replies: 2

Views: 6K

Undergrad Time Dilation Explained: Theory & How It Works

Apr 15, 2003 · Replies 52 · Apr 29, 2003

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Replies: 52

Views: 10K

Graduate Hey, how predictable is a frame of reference going faster than c?

Apr 29, 2003 · Replies 2 · Apr 29, 2003

Replies: 2

Views: 3K

High School Gravitational Attraction: How Matter Interacts Without Repelling

Apr 21, 2003 · Replies 8 · Apr 23, 2003

Replies: 8

Views: 3K

Graduate The Twins Paradox and the Experience of Time

Apr 12, 2003 · Replies 90 · Apr 23, 2003

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Replies: 90

Views: 10K

Graduate How To Teach Special Relativity

Mar 20, 2003 · Replies 2 · Apr 21, 2003

Replies: 2

Views: 8K

Undergrad Converting Kinetic Energy: Solving for Mass in E=mc2 Equation

Apr 18, 2003 · Replies 12 · Apr 21, 2003

Replies: 12

Views: 7K

Graduate What are 'rods' and 'clocks in relativity?

Apr 11, 2003 · Replies 8 · Apr 20, 2003

Replies: 8

Views: 5K

Graduate Travel Near C: Electron Behavior and Lorentz Contraction

Apr 18, 2003 · Replies 6 · Apr 18, 2003

Replies: 6

Views: 3K

Graduate Relative velocities in relativity

Apr 18, 2003 · Replies 3 · Apr 18, 2003

Replies: 3

Views: 3K

Undergrad How does time dilation in relativity work?

Apr 18, 2003 · Replies 4 · Apr 18, 2003

Replies: 4

Views: 4K

Undergrad I am heavy or having more mass ? E=mc^2

Apr 14, 2003 · Replies 18 · Apr 16, 2003

Replies: 18

Views: 4K

Graduate Another attempt to combine QM and relativity

Apr 11, 2003 · Replies 13 · Apr 14, 2003

Replies: 13

Views: 4K

Undergrad Understanding the Compatibility of Relativity and Quantum Theories

Apr 11, 2003 · Replies 4 · Apr 12, 2003

Replies: 4

Views: 3K

Graduate Pondering Paradoxes in Special Relativity

Mar 21, 2003 · Replies 14 · Apr 12, 2003

Replies: 14

Views: 4K

Controversial subject of Time Travel

Mar 26, 2003 · Replies 38 · Apr 10, 2003

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Replies: 38

Views: 7K

Graduate Is Time Really a Vector in Our Universe?

Apr 7, 2003 · Replies 1 · Apr 9, 2003

Replies: 1

Views: 4K

Graduate Gravity and anti-energy related?

Mar 24, 2003 · Replies 10 · Apr 7, 2003

Replies: 10

Views: 6K

Graduate What is the Vortex Theory and why is it considered controversial?

Apr 1, 2003 · Replies 3 · Apr 1, 2003

Replies: 3

Views: 5K

Graduate Thinking about gravity and ineria

Mar 27, 2003 · Replies 5 · Mar 28, 2003

Replies: 5

Views: 3K

Undergrad Relativity and the Constant Velocity of Light

Mar 25, 2003 · Replies 2 · Mar 25, 2003

Replies: 2

Views: 4K

Undergrad Question about two-clock experiment

Mar 19, 2003 · Replies 9 · Mar 23, 2003

Replies: 9

Views: 6K

Undergrad Why Is Gravitational Energy Considered Negative?

Mar 20, 2003 · Replies 6 · Mar 20, 2003

Replies: 6

Views: 18K

Graduate Calculating Beta Factor: Frame of Reference?

Mar 17, 2003 · Replies 4 · Mar 17, 2003

Replies: 4

Views: 9K

Relativity

The theory of relativity, formulated by Albert Einstein, comprises two fundamental theories—special and general relativity. Special relativity, proposed in 1905, redefines our understanding of space and time by asserting the constancy of the speed of light for all observers and introducing concepts like time dilation and length contraction.

General relativity, presented in 1915, extends these principles to incorporate gravity. It describes gravity as the curvature of spacetime caused by massive objects, leading to phenomena like gravitational time dilation and the prediction of black holes. Einstein's equations have been consistently validated through experiments and observations, profoundly influencing our comprehension of the universe's fabric and dynamics.

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